CVE-2019-12819

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{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D1C581ED-7982-4D97-89D0-9DD8E7B66D0D", "versionEndExcluding": "5.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in the Linux kernel before 5.0. The function __mdiobus_register() in drivers/net/phy/mdio_bus.c calls put_device(), which will trigger a fixed_mdio_bus_init use-after-free. This will cause a denial of service."}, {"lang": "es", "value": "Fue encontrado un problema en el kernel de Linux anterior a versi\u00f3n 5.0. La funci\u00f3n __mdiobus_register() en el archivo drivers/net/phy/mdio_bus.c llama a put_device(), que desencadenar\u00e1 un uso despu\u00e9s de liberar de fix_mdio_bus_init . Esto causar\u00e1 una denegaci\u00f3n de servicio."}], "id": "CVE-2019-12819", "lastModified": "2026-06-17T02:15:33.250", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-06-14T02:29:00.330", "references": [{"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html"}, {"source": "cve@mitre.org", "url": "http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/108768"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6ff7b060535e87c2ae14dd8548512abfdda528fb"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/6ff7b060535e87c2ae14dd8548512abfdda528fb"}, {"source": "cve@mitre.org", "url": "https://security.netapp.com/advisory/ntap-20190710-0002/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4094-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4118-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/108768"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6ff7b060535e87c2ae14dd8548512abfdda528fb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/6ff7b060535e87c2ae14dd8548512abfdda528fb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20190710-0002/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4094-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4118-1/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2020:1567", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-193.rt13.51.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-04-28T00:00:00Z"}, {"advisory": "RHSA-2020:1769", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-193.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-04-28T00:00:00Z"}], "bugzilla": {"description": "kernel: use-after-free in function __mdiobus_register() in drivers/net/phy/mdio_bus.c", "id": "1721962", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1721962"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-416", "details": ["An issue was discovered in the Linux kernel before 5.0. The function __mdiobus_register() in drivers/net/phy/mdio_bus.c calls put_device(), which will trigger a fixed_mdio_bus_init use-after-free. This will cause a denial of service.", "A use-after-free flaw was found in the Linux kernel's MDIO section of the network management subsystem. An attacker who is able to hot-plug a network device can trigger the __mdiobus_register() function in drivers/net/phy/mdio_bus.c, which can cause a use-after-free condition causing a memory corruption and kernel panic or privilege escalation."], "name": "CVE-2019-12819", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "kernel-alt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2019-06-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-12819\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-12819"], "threat_severity": "Moderate"}

{}